Where'd you get that from?

There's a few on there that I wouldn't do, and a few combinations I use all the time that aren't on that list. But it's not a big deal.

If you're just learning to fly, it's not critical, but it's a good idea to try a few differnet props.

If you are looking for performance, you pretty much HAVE to try several differnet sizes in differnet brands to see what works for you. As FHHuber said, airframe does play a part. So does your fuel, and where you fly, etc.